OK Electroneum is a different concept.

Before you even think about POW mining on your phone, bear in mind that even mining on your computer or laptop can be detrimental to their CPUs or GPUs... and we're talking about much faster machines here. Even if you used up 1 or 2 of your CPUs/GPUs on your computer to mine, the cost of electricity is too high and the risk of overheating and damaging your hardware too much.

Phones are even more prone as they have much weaker hardware. The only thing I would consider using a phone for mining is PoS coins. But even then, staking 10 wallets on your phone sounds like a power-draining exercise.